<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<%
		String check = request.getParameter("text");
		if (check.equals("") || check == null) {
			out.print("<script>alert('请输入验证码');window.location.href('index.jsp')</script>");
		} else {
			if (!check.equalsIgnoreCase((String) session.getAttribute("code"))) {
				out.print("<script>alert('验证码错误');history.back(-1);</script>");
			} else {
				out.print("登陆成功");
			}
		}
	%>
</body>
</html>